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# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
from trytond.model import ModelSQL, ModelStorage, fields
from trytond.pool import Pool
from trytond.transaction import Transaction
class FunctionDefinition(ModelStorage):
"Function Definition"
__name__ = 'test.function.definition'
function = fields.Function(
fields.Integer("Integer"),
'on_change_with_function', searcher='search_function')
def on_change_with_function(self, name=None):
return self.id
@classmethod
def search_function(cls, name, clause):
return [('id',) + tuple(clause[1:])]
class FunctionAccessor(ModelSQL):
"Function Accessor"
__name__ = 'test.function.accessor'
target = fields.Many2One('test.function.accessor.target', "Target")
function = fields.Function(
fields.Many2One('test.function.accessor.target', "Function"),
'on_change_with_function')
@fields.depends('target')
def on_change_with_function(self, name=None):
if self.target:
return self.target.id
class FunctionAccessorTarget(ModelSQL):
"Function Accessor Target"
__name__ = 'test.function.accessor.target'
class FunctionGetterContext(ModelSQL):
"Function Getter Context"
__name__ = 'test.function.getter_context'
function_with_context = fields.Function(
fields.Char("Function"),
'getter', getter_with_context=True)
function_without_context = fields.Function(
fields.Char("Function"),
'getter', getter_with_context=False)
def getter(self, name):
context = Transaction().context
return '%s - %s' % (
context.get('language', 'empty'), context.get('test', 'empty'))
class FunctionGetterLocalCache(ModelSQL):
"Function Getter with local cache"
__name__ = 'test.function.getter_local_cache'
function1 = fields.Function(
fields.Char("Char 1"), 'get_function1')
function2 = fields.Function(
fields.Char("Char 2"), 'get_function2')
def get_function1(self, name):
return "test"
def get_function2(self, name):
return self.function1.upper()
@classmethod
def index_get_field(cls, name):
index = super().index_get_field(name)
if name == 'function2':
index = cls.index_get_field('function1') + 1
return index
def register(module):
Pool.register(
FunctionDefinition,
FunctionAccessor,
FunctionAccessorTarget,
FunctionGetterContext,
FunctionGetterLocalCache,
module=module, type_='model')
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